This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. Please help improve this article by introducing more precise citations.(August 2019) (Learn how and when to remove this message)
The depth light can penetrate into a material
Penetration depth is a measure of how deep light or any electromagnetic radiation can penetrate into a material. It is defined as the depth at which the intensity of the radiation inside the material falls to 1/e (about 37%) of its original value at (or more properly, just beneath) the surface.
When electromagnetic radiation is incident on the surface of a material, it may be (partly) reflected from that surface and there will be a field containing energy transmitted into the material. This electromagnetic field interacts with the atoms and electrons inside the material. Depending on the nature of the material, the electromagnetic field might travel very far into the material, or may die out very quickly. For a given material, penetration depth will generally be a function of wavelength.
Penetrationdepth is a measure of how deep light or any electromagnetic radiation can penetrate into a material. It is defined as the depth at which the...
In superconductors, the London penetrationdepth (usually denoted as λ {\displaystyle \lambda } or λ L {\displaystyle \lambda _{L}} ) characterizes the...
or structural penetrant Penetration (weapons), the ability to pierce the target's armor or other protection Penetrationdepth of light or any electromagnetic...
known as frost depth or freezing depth—is most commonly the depth to which the groundwater in soil is expected to freeze. The frost depth depends on the...
thermoacoustic element is the value of the thermal and viscous penetration depths. The thermal penetrationdepth δκ is the thickness of the layer of the gas where...
2 {\displaystyle \lambda _{2}} are their London penetration depths. The Josephson penetrationdepth usually ranges from a few μm to several mm if the...
attributable to bremsstrahlung. The penetrationdepth depends also on beam shape, narrower beam tend to have less penetration. In water, broad electron beams...
magnetic fields are exponentially suppressed: it is called the London penetrationdepth: typical values are from 50 to 500 nm. For example, consider a superconductor...
London penetrationdepth, the magnetic field is not completely canceled. Each superconducting material has its own characteristic penetrationdepth. Any...
the phase of the current density is delayed 1 radian for each skin depth of penetration. One full wavelength in the conductor requires 2π skin depths, at...
coupling (between the work coil and the object to be heated), and the penetrationdepth. Induction heating allows the targeted heating of an applicable item...
magnetic field is not quite zero at the edges of any given sample – a penetrationdepth applies. For a type-I superconductor, the current must remain zero...
Variations of the position allow varying degrees of clitoral stimulation, depth of penetration, participation on the part of the woman, and the likelihood and speed...
and consequently to a longer London penetrationdepth of external magnetic fields and currents. The penetrationdepth becomes infinite at the phase transition...
They are a highly ionizing form of particle radiation, with low penetrationdepth (stopped by a few centimetres of air, or by the skin). However, so-called...
called the "penetrationdepth" of the evanescent wave. Taking reciprocals of the first equation of (12), we find that the penetrationdepth is d = λ 0...
comparable to the London penetrationdepth, the magnetic field can pass through the material. The act of magnetic penetration is what makes flux pinning...
The standard penetration test (SPT) is an in-situ dynamic penetration test designed to provide information on the geotechnical engineering properties of...
increase eddy currents, even with non-uniform field penetration.[citation needed] The penetrationdepth for a good conductor can be calculated from the following...
Velocity Variation Correction to Measured BB PenetrationDepth, can be used to make corrections to BB penetrationdepth when measured BB velocity is within ±10 m/s...